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Exotic tree plantations as alternative breeding habitat for an endemic avian predator
The Doñana Biological Station has explored the suitability of exotic tree plantations as breeding habitat for an island endemic raptor, the Macaronesian sparrowhawk (Accipiter nisus granti)
Humans and scavenging raptors facilitate Argentine ant invasion in Doñana National Park
Biotic resistance by native communities could have a role in the spread of invasive species. Native communities with higher species richness should be less susceptible to invasion by exotic species...
Pheomelanin synthesis varies with protein food abundance in developing goshawks
The accumulation of the amino acid cysteine in lysosomes produces toxic substances, which are avoided by a gene (CTNS) coding for a transporter that pumps cystine out of lysosomes. Melanosomes are...
Gyrfalcons Falco rusticolus adjust CTNS expression to food abundance: a possible contribution to cysteine homeostasis
Melanins form the basis of animal pigmentation. When the sulphurated form of melanin, termed pheomelanin, is synthesized, the sulfhydryl group of cysteine is incorporated to the pigment structure....
Nest decoration as a communication signal
Avian nests are frequently concealed or camouflaged, but a number of species builds noticeable nests or use conspicuous materials for nest decoration. In territorial species decorations may serve...
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